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Length: 7:34 -
Rating: 5.0 (9 ratings) -
View: 502 -
Author: NG9D
Voice frequency filtering is usually limited to about 2500Hz for clear communications. Video shows effect of narrowing the audio passband on both voice and C...
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Length: 6:4 -
Rating: 4.9322033 (59 ratings) -
View: 26548 -
Author: Ballage1
My homebrew CW/SSB receiver for 20m band based on NE612 chip. The crystals in the ladder filter are not perfectly matched. The tuning potentiometer is recycl...
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Length: 7:5 -
Rating: 5.0 (9 ratings) -
View: 486 -
Author: NG9D
IRAD 400 Hz intermediate frequency filter installation/demonstration in Icom IC-703. 400 Hz 455 kHz CW 8-pole crystal filter. This is a replacement filter fo...
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Length: 1:56 -
Rating: 5.0 (6 ratings) -
View: 2220 -
Author: NG9D
A demonstration of a Switched Capacitor Audio Filter reducing background noise on a Grundig G6 shortwave receiver. Reception of amateur radio CW (Morse code)...
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Length: 3:5 -
Rating: 5.0 (2 ratings) -
View: 204 -
Author: Dimitrios Pallis
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Length: 5:56 -
Rating: 5.0 (3 ratings) -
View: 842 -
Author: ke4tmt
Demonstration of a Ten-Tec Model 217 CW Filter on a Ten-Tec Argosy (analog) amateur radio.
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Length: 4:13 -
Rating: 4.8933334 (75 ratings) -
View: 18068 -
Author: dlab500
Denise Brown at the helm on a classic tube Ham radio rig. Made a CW contact on 40 meters with a little assistance from N6tlu. This station will always be in ...
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Length: 1:20 -
Rating: 5.0 (1 ratings) -
View: 751 -
Author: fabio di pisa
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Length: 6:22 -
Rating: 5.0 (1 ratings) -
View: 265 -
Author: iv3vny
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Length: 1:44 -
Rating: 5.0 (2 ratings) -
View: 322 -
Author: dlab500
Demo of a nice upgraded Globe Chief transmitter. This transmitter has new filter caps and upgraded plate meter. Fun to operate on CW!
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Length: 1:21 -
Rating: 0 (0 ratings) -
View: 447 -
Author: MrOsarusan00
Listening 40m CW with ICOM IC-703 installed FL52A,500Hz Bandwidth narrow Filter.
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Length: 2:11 -
Rating: 0 (0 ratings) -
View: 2083 -
Author: Stephen Fiddes
W7MSO, Marty, Passed away on 3-7-2011, at 8:21 AM. May he rest in peace. I missed the first few seconds of it because my memory card was in my computer, but this is the last half of the net.
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Length: 0:30 -
Rating: 5.0 (6 ratings) -
View: 380 -
Author: Fabio Bonucci
Testing audio filter for CW (radiotelegraphy) reception - QTH: Civitavecchia DATE: March 9, 2013 @ 21:15 UTC on 7023 kHz.
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Length: 6:51 -
Rating: 4.6923075 (13 ratings) -
View: 8280 -
Author: dj2fma
Listen to the 80 m Amateur Radioband (CW Range) with a Sangean ATS-909 Shortwave Radio. 1. Standard Radio with standard filters 2. With an external audio spe...
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Length: 6:33 -
Rating: 5.0 (16 ratings) -
View: 401 -
Author: NG9D
The latest audio filter from the workshop of Joe, K8LKC! He demonstrates his home-brewed passive (unpowered) filter with 200 Hz bandwidth at -30db with cente...
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